To assemble the kebobs, arrange chicken, cherry tomatoes, mushrooms, onion, and bell pepper on skewers, alternating between ingredients. Make sure to leave space on the end to be able to handle the skewer when flipping on the grill. Drizzle kebobs with olive oil, and sprinkle blackening spice over the chicken.

Cook kebobs on the grill for 4-5 minutes per side, turning once or twice, until internal temperature of the chicken reaches 160.